norm.counts {msmsEDA} | R Documentation |
An spectral counts matrix is normalized by means of a set of samples divisors.
norm.counts(msnset, div)
msnset |
A MSnSet with spectral counts in the expression matrix. |
div |
A vector of divisors by sample |
Each column in the data matrix is divided by the corresponding divisor to obtain the normalizad matrix.
A MSnSet object with the normalized spectral counts.
Josep Gregori
The MSnSet
class documentation and normalize
data(msms.dataset) msnset <- pp.msms.data(msms.dataset) (tspc <- apply(exprs(msnset),2,sum)) div <- tspc/median(tspc) e.norm <- norm.counts(msnset, div) apply(exprs(e.norm),2,sum) e.norm